The Coyle family embarks on a camping trip, only to be met with the tragic disappearance of their young daughter, Tessa. Twenty five years later, the events of that day still haunt the Coyles. Matriarch Donna (Dee Wallace) still believes Tessa is alive and continues to celebrate her birthday year after year, hoping for her return. Oldest son Jack (James Zimbardi) is the glue that tries to keep the family together without breaking down himself. Meanwhile, middle son Lucas (Skyler Caleb) is a recovering addict with a young daughter of his own that he’s trying to protect. When the appearance of a mysterious entity known as the Nix manifests itself, horrible things begin to happen again. Now the family has to confront the past and what really happened out in the woods all those years ago, or succumb to the darkness that is waiting to consume them.